Adaptive transmission line termination

申请公布号：

US5422608(A)

申请号：

US19940298235

申请日期：

1994.08.30

申请公布日期：

1995.06.06

申请人：

TEXAS INSTRUMENTS INCORPORATED

发明人：

LEVESQUE, LOUIS Y.

分类号：

H03H11/30;(IPC1-7):H03H11/30

主分类号：

H03H11/30

摘要：

An adaptive transmission line termination which includes a variable voltage controlled resistor (16) connected either in series with the sending end of transmission line (10) or in parallel with the receiving end of line (10). The resistance of resistor (16) is varied in dependence upon the half voltage appearing on line (10) in order to match the characteristic impedance of line (10) for the series or source termination case. In the parallel termination case, the resistance of resistor (34) is varied in dependence upon the voltage appearing at the input of gate (14) to match the characteristic impedance of line (10).